IT1042669B - Shaft furnace construction - comprising preheating zone, combustion zone and cooling zone - Google Patents
Shaft furnace construction - comprising preheating zone, combustion zone and cooling zoneInfo
- Publication number
- IT1042669B IT1042669B IT2738775A IT2738775A IT1042669B IT 1042669 B IT1042669 B IT 1042669B IT 2738775 A IT2738775 A IT 2738775A IT 2738775 A IT2738775 A IT 2738775A IT 1042669 B IT1042669 B IT 1042669B
- Authority
- IT
- Italy
- Prior art keywords
- zone
- combustion zone
- transition
- combustion
- cooling
- Prior art date
Links
Landscapes
- Tunnel Furnaces (AREA)
Abstract
A shaft furnace is described, having a pre-heating zone through which heated reaction flue gases can flow to heat material flowing downwardly through the zone, a combustion zone, and a cooling zone to which cooling air can be supplied to flow upwardly towards the combustion zone and cool downwardly flowing heated material burnt in the combustion zone. The shaft wall contains gas exit openings at the transition from the cooling zone to the combustion zone and gas inlet openings in at least two vertically spaced planes at the transition from the combustion zone to the pre-heating zone. Means are provided to lead gases flowing from the gas exit openings over a heat exchanger fully or partially into the gas inlet openings of the upper section of the transition from the preheating zone to the combustion zone and means are provided to lead a supply of fuel and heated fresh air from the heat exchanger, to which part of the gases from the exit openings may be added into the gas inlet openings of the lower section of the transition from the combustion zone to the pre-heating zone.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2738775A IT1042669B (en) | 1975-09-18 | 1975-09-18 | Shaft furnace construction - comprising preheating zone, combustion zone and cooling zone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2738775A IT1042669B (en) | 1975-09-18 | 1975-09-18 | Shaft furnace construction - comprising preheating zone, combustion zone and cooling zone |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1042669B true IT1042669B (en) | 1980-01-30 |
Family
ID=11221540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2738775A IT1042669B (en) | 1975-09-18 | 1975-09-18 | Shaft furnace construction - comprising preheating zone, combustion zone and cooling zone |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1042669B (en) |
-
1975
- 1975-09-18 IT IT2738775A patent/IT1042669B/en active
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